Mattea Roach's 23-game winning streak on Jeopardy! is both an intellectual feat and the quiz show at its most entertaining.

The Canadian superchamp responded to countless topics with 92 per cent accuracy, netting $560,983 US in winnings. But the 23-year-old also narrowly triumphed in a number of neck-and-neck games, brought personable quips and commentary to an often straightlaced stage and was visibly having fun in even the most high-pressure situations.

Roach's winning streak ended with a $1 loss in Friday's episode of Jeopardy!. Today, she joins us to explain why her life felt directionless before getting the invitation, what she discovered about herself on set and why the show has become an intellectual institution.

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